Buttler was retained by Rajasthan Royals for the 2020 IPL, which starts on March 29, and will play alongside England team-mates Ben Stokes and Jofra Archer and Ashes rival Steve Smith.
The 29-year-old has starred in the last two editions of the Indian Premier League and will hope for another productive tournament this year ahead of the T20 World Cup, which begins in October.
England will hope to become double world champions later in the year and defeated South Africa in a thrilling three-match T20 series earlier in the month.
‘I think the IPL has had as big an impact as any on my career,’ Buttler said.
‘It’s an amazing place to learn and it is the best T20 competition in the world, all the best players playing against each other and you’re sharing a dressing room with past and present brilliant players.
‘It is a place where you can learn so much, learn a lot about yourself and looking ahead to the T20 World Cup in the not-too-distant future, the IPL is a great platform to prepare at the highest level.’
Before heading to the IPL, Buttler will hope to rediscover his form in Test cricket when England take on Sri Lanka in a two-match series next month.
He endured an underwhelming winter with the bat, failing to score a half-century across five matches in New Zealand and South Africa, and faces competition from the recalled Ben Foakes.
‘For me, it is about focusing on myself and being as good as I can be,’ Buttler added in an interview with Sky Sports.
‘But obviously, the competition is great, it pushes performances, it pushes you to improve.
‘We know what a great player Ben Foakes is, he had a fantastic tour in Sri Lanka last time as well. It is exciting times for the squad.’
England’s two-Test series in Sri Lanka starts in Galle on March 19.